Freedom from interference (FFI) in electronics systems

An apparatus comprising:

• a system fault handler configured to perform a fault handling;
• a domain flow control module coupled to the system fault handler, the domain flow control module configured to send a block and flush request message;
• and
• a shared communication channel coupled to the domain isolation control module, the shared communication channel configured to execute a block operation and a flush operation based on the block and flush request message to implement freedom from interference (FFI).

An apparatus comprising:

• a system fault handler configured to perform a fault handling;
• a domain isolation control module coupled to the system fault handler, the domain isolation control module configured to receive a traffic isolation request message;
• a domain flow control module coupled to the system fault handler, the domain flow control module configured to send a block and flush request message;
• and
• a shared communication channel coupled to the domain isolation control module, the shared communication channel configured to execute a block operation and a flush operation based on the traffic isolation request message and the block and flush request message, the block operation and the flush operation executed on a first automotive safety integrity level (ASIL) domain to implement freedom from interference (FFI).

An apparatus comprising:

• means for initiating a fault handling for a first automotive safety integrity level (ASIL) domain based on a main domain hardware error message;
• means for sending a traffic isolation request message for the first ASIL domain;
• means for sending a traffic block request message for the first ASIL domain;
• and
• means for executing a block operation and a flush operation on the first ASIL domain based on the traffic isolation request message and the traffic block request message to implement freedom from interference (FFI).

A method comprising:

• initiating a fault handling for a first automotive safety integrity level (ASIL) domain based on a main domain hardware error message;
• sending a traffic isolation request message for the first ASIL domain;
• sending a traffic block request message for the first ASIL domain;
• and
• executing a block operation and a flush operation on the first ASIL domain based on the traffic isolation request message and the traffic block request message to implement freedom from interference (FFI).